help!!!!!

[02 Ram]

check engine light came on. heres the codes i got

p1698
p1798

i know there tranny related but these trucks are new to me. TIA

 

[SmokedRam]

P1698 is:

Fault: No BUS message from TCM
Explanation: Failed ECM
Probable cause: 1. Open bus line 2. Failed TCM

P1798 is:

Worn or burnt transaxle fluid.

 

[02 Ram]

thanks. after reading up on google, turns out it was set off due to my remote starter. i read that disconnecting the battery for 10 minutes should reset it and it did. took it for a short drive and its still off. ill update if it comes back